Step 4: Fill Trenches

Step 5: Cover Water

Step 6: Build Contraption

build up the center, between the two dirt platforms. place 1x2 block high rise in the center. place pistons on both sides facing in. place wall along the edge. build a 3x4 rectangle above the pistons with a hollow center

Step 9: Pull the Lever

PULL THE LEVER!!! pull it to make sure that you have the redstone circuitry in check, the pistons should close together like in the pic. put some water into the hollow rectangle above the pistons (while they are closed)

Step 12: Harvest!

PULL THE LEVER!!!! pull it... just do it.... you know you want to... when you pull the lever the water will come down and harvest the crop! sometimes it may miss the corners so what you want to do is place 2 blocks in front of the waterflow like in the pic. and the water should flow all the way to the end!

Step 13: Replant

Step 14:

note: i did this on creative so i could show you better but it works just as well on survival. you do NOT have to re-till the soil after the water flows through it. questions and comments appreciated! but be nice this is my first 'ible

That....would be...EPIC! And you could redesign it a little and have dispensers and hoppers so it would be totally automatic and self sustaining by sorting the wheat from the seeds and taking them to the dispensers via hoppers! :0 we need to find a way to build this! You have opened up so many possibilities!

Did you also know that you don't need water and tilled soil to plant flowers? You can plant them on regular untilled dirt/grass blocks. You only need water and tilled soil for growing wheat, potatoes and carrots! If you have any questions (and I'm not trying to sound smart) feel free to ask me! I've been playing a long time and know quite a bit about minecraft.